This tiny chip can detect minute amounts of microcystin in water — as little as one part per trillion. (sciencenewsforstudents.org)
Another potential serious risk is the potential for microcystin toxin — a German study found this toxin was in every supplement containing a form of green - blue algae (Aph. (carbscout.com)
City officials found a toxin called microcystin (MY - kroh - SIS - tin) at levels above one part per billion. (sciencenewsforstudents.org)